Abstract
The typical methods for predicting rocket engine noise were comprehensively illustrated. Simultaneously including some modification, implement noise environmental prediction of any engine number, any position via programming. For instance, in a liquid rocket engine, noise field of the double engine was predicted, the results of which were compared with experimental data. We then evaluated the advantages and disadvantages of different methods and analyzed the source of the error. Finally, a methodology of predicting the jet noise was proposed, which can be applied to multiple engines. Given the high prediction accuracy on the overall acoustic pressure and the acoustic pressure spectrum, this method is of great importance in engineering application.
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